How To Identify Severe Furnace Issues

Despite every long summer, winter appears to always arrive in a hurry.

All of a sudden, the furnace is your favorite appliance in the house. So it is just right that when problems arise, you know it right away.

Keeping your home cozy warm is a combination of routine maintenance and knowing the furnace problem’s indications. You can start today by educating yourself on the most common furnace improvements and concerns, know their severity, and as well as how to spot them.

Electrical Issues 

Furnace owners may face many problems, the most common among them being the furnace fuse blowing up once in a while. When this occurs, your furnace does not take in power. People experience this when they connect some additional lights or appliances, especially if they are of low quality. But your HVAC system or electrical system could also be the reason for your furnace fuse to blow up. It will help if you do some basic troubleshooting to determine the situation and decide whether you can fix it independently or need an HVAC technician.

Electric furnace problems can be complex to troubleshoot because of many possible causes and also because the problem can be intermittent. If that’s the case, it may require a few tries to get to the root of the issue, causing the HVAC fuse to blow. The underlying problem could even be related to a thermostat fuse. Pay heed to details so you can provide your technician with as many details as possible. Does the fuse blow when the system starts up or when it’s been running a while?

Make sure your hired HVAC technician checks all of the following causes when troubleshooting electric furnace problems.

  • Clogged filter
  • Loose wire
  • Contact with water
  • Wrong fuse
  • Dirty fuse
  • Faulty starting capacitor
  • Transformer failure
  • Bad blower motor
  • Failing valve
  • Electric furnace thermostat control wire

Unusual noises from the furnace

Older furnaces tend to make a lot of noise. While slight humming and pops are normal noises coming from the heating unit and your overall system, you shouldn’t ignore several strange furnace sounds. Below are the five sounds you should call Blue Sky Heating and Air LLC about, from thumping to vibrating to squealing.

  • Thumping noises – An unbalanced blower wheel most likely causes a vibrating sound. The noise can also be due to the motor itself is out of balance. If loud thumps are coming from your system while it’s running, it’s best to call an HVAC professional for a thorough inspection to ensure that an unbalanced wheel doesn’t do permanent damage to your system.
  • Squealing noises – A squealing noise can come from several different sources. The three most common sources of a squealing sound in your furnace are a shaft bearing that requires oiling, a loose blower belt, or a malfunctioning blower motor.
  • Banging or popping noises – A loud banging noise could come from the furnace for two reasons. First, filthy furnace burners causing a delay in the ignition. As the discharged gas accumulates, the ignitor finally generates a flame, lighting the gas in a tiny explosion. Not only can this be a big pop, but it could result in more significant damage to the system—including a cracked heat exchanger. The best solution is to have a professional come and clean the burners so that they ignite immediately and there’s no buildup of gas.

The other reason could also be the air ducts, carrying hot air through cold metal, expand and contract with temperature change. Popping noises are relatively common, so to diagnose the sounds’ precise source, listen to your furnace, and then observe if the noise is also coming from other parts of the home.

Offensive smell

 If you’re near your furnace and detect a scent that stings your nose, you have a pretty severe problem and should shut off your furnace and get it serviced right away. The smell can indicate a failed heat exchanger, especially if you have a high-efficient furnace. A lousy heat exchanger is a serious problem because it can pump unsafe levels of dangerous carbon monoxide (CO) gas into your home.

Furnace short cycling

Have you ever thought about why does your furnace keeps shutting off? You are not alone. This situation is a prevalent problem that could result in higher utility bills and significant furnace repairs if not diagnosed and corrected immediately. A furnace replacement could be the worst-case scenario if it’s left for too long. When your furnace is cycling on and off, it’s referred to as furnace short cycling. Below we go over a few of the more common causes of why this might be happening.

Short cycling is a failure that causes your furnace to rapidly turn on and off for short periods, generally between four and seven seconds per cycle. If you remark constant, short bursts of activity, you’re experiencing short cycling. Short cycling causes vary from minor malfunctions to significant problems that will require new parts or, in rare cases, even a new furnace. Often, short-cycling results from overheating in the furnace, which leads safety features in the furnace to shut it down automatically. Call a professional HVAC right away when you notice this behavior from your furnace.

The advantages of eliminating furnace issue into three categories:

  • Energy-saving: For example, short cycling results in your furnace being in almost constant use. Non-stop running equates to reduced energy efficiency and increased utility bills. Additionally, if your home suffers from inadequate insulation, the hike in energy costs can be severe.
  • Safety: Furnace issues, if not appropriately addressed, can be the sign of a severe problem that can threaten your family and home’s safety as a whole. It’s essential to immediately address any of it to avoid critical issues in the future.
  • Convenience: A efficient furnace will result in steady temperatures in your home—temperatures that go with your desired mood. A well-functioning furnace will also free you from additional financial burdens with extra energy costs and repairs.

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